mail.glorytech.bet has no CNAME records.
Question and response
Question
dig mail.glorytech.bet. NS
Answer
The response has no answer records.
Authority
glorytech.bet. 1800 SOA david.ns.cloudflare.com. dns.cloudflare.com. 2397946064 10000 2400 604800 1800
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0